#Use avidemux to shift sound software#

Product: 82801H (ICH8 Family) HD Audio ControllerĬapabilities: pm msi pciexpress bus_master cap_listĬonfiguration: driver=HDA Intel latency=0 module=snd_hda_intelĪt least my hope is that if this problem doesn't get solved, my new laptop system may not have similar issues.Avidemux is a free software which can be used to do some great editing. Product: 82801FB/FBM/FR/FW/FRW (ICH6 Family) AC'97 Audio ControllerĬase 3 - newest system - great audio playback and perfect syncĬapabilities: boot fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx x86-64 constant_tsc arch_perfmon pebs bts pni dtes64 monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr pdcm lahf_lm tpr_shadow cpufreq Product: 82801FB/ FBM/FR/ FW/FRW (ICH6 Family) AC'97 Audio Controller Product: Intel(R) Pentium(R) M processor 2.00GHzĬapabilities: fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat clflush dts acpi mmx fxsr sse sse2 ss tm pbe nx up bts est tm2 cpufreq Product: 82801EB/ER (ICH5/ICH5R) AC'97 Audio ControllerĬonfiguration: driver=Intel ICH latency=0 module=snd_intel8x0Ĭase 2 - newer laptop - poor audio playback, but stays in sync with video and shows no ill effects in renderings: Product: Intel(R) Pentium(R) 4 CPU 2.80GHzĬapabilities: boot fpu fpu_exception wp vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe pebs bts cid xtpr

$ sudo lshw -sanitize -class cpu -class multimedia Perhaps this is a thread scheduling or priority (or CPU capacity) issue in the application given the newer operating systems?Ĭase 1 - oldest system - nice sounding audio but rapidly looses sync with the video: upgrading made improvements in the playback. The newer the chipset the better the audio. The older Intel audio chipsets have progressively worse trouble with sound (on the newer operating systems), but the oldest, with the faster CPU, didn't have the playback noise, only the sync problem. Notice the progression (I tested several systems since the last posting). I think this has to be AviDeMux or maybe both the application and the drivers.

Then, as a video was playing, I drug the window around with the mouse, leading to substantially increased audio noise! the original upgrade) on the problematic system) the 'default' device for ALSA cleaned up the noise and distortion to the point that it was more usable than my Pulse alternative (that continued to have dropout beats every few seconds).Ģ. When André said he had similar problems with OSS and SDL (I didn't), I really began to suspect AviDeMux, even though, initially, I just swapped in the new OS under the application.īut perhaps the newer OS (both Intrepid and Jaunty) just were less efficient, exposing the problem?ġ. But since all other audio systems had no similar problems, I suspected AviDeMux - perhaps exposing a problem lower down the stack, or just mishandling it (more likely). Since everything worked before Intrepid, I though it might be either drivers, specifically, or systems integration (Ubuntu), in general - wasn't that the switchover from ALSA to Pulse?Ģ. All of the systems I have to work with (both laptops and desktops) have the on-board Intel audio chip sets, and this trouble seems to affect them all, though the degree of the trouble varies.ġ. So, somehow, this really does seem to be a problem, as I no longer have a complete work-around. All this started with Intrepid and follows through the same way in Jaunty. I could not work with the noisy audio at all. I had to use Pulse Audio to clean up the sound while working, except that, now the sound 'pulsed' (no pun intended) - the sound drops out briefly about every 2 seconds - like clockwork! I can at least work with that, because, the final renderings are unaffected. While that got rid of the original 'trouble initializing.' problems, as you said it would, it did not provide useful audio for me while working - I got very 'noisy' unstable sound. Actually, I just tried your suggestion -> going back to ALSA with 'default' typed-in in place of 'dmix' (as there is no drop-down to choose it, like with the other options).

Use avidemux to shift sound